For a glucose-fed bio-hydrogen producing bioreactor, we have fitted the model parameters of a known model using experimental data obtained from a pilot laboratory-scale bioreactor. We use this fitted model to design an output-feedback controller based on the super-twisting algorithm, which uses only the on-line measurements of the hydrogen production rate and maximizes this variable by manipula...

This paper studies robust control schemes for two spacecraft in formation subjected to external disturbances in the space environment. Two sliding mode control schemes are designed to generate control with a finite time convergence property. The super twisting and adaptive super twisting control algorithms are developed for the two-spacecraft formation flying system. The second method of Lyapun...

The super-twisting algorithm (STA) has become the prototype of second-order sliding mode algorithm. It achieves finite time convergence by means of a continuous action, without using information about derivatives of the sliding constraint. Thus, chattering associated to traditional sliding-mode observers and controllers is reduced. The stability and finite-time convergence analysis have been jo...